Cycle-lock.



RI WI OYOLE LOOK. Arrmonzon nun JULY 2, 1913.

Patented June 9,1914,

81mm REM-PH WGResg UNITED STATES PATENT OFFICE.

CYCLE-LOCK.

Specification of Letters Patent.

Patented June 9, 1914.

Application filed July 2, 1913. Serial No. 777,132.

To all whom it may concern:

Be it known that I, RALPH W. GREEN, a citizen of the United States, residing at Modesto, in the county of Macoupin and State of Illinois, have invented certain new and useful Improvements in C ole-Locks, of which the following is a speci cation, reference being had to the accompanying drawings.

This invention relates to new and useful improvements in cycle locks and more particularly to a lock for application to use in connection with a motorcycle and the primary object of the invention resides in providing a lock of this character which will securely lock the stand of a motorcycle in place and, at the same time, prevent the theft of the cycle while the stand is disposed in its effective position;

Still another object of the invention resides in providing a lock which is mounted in the frame of a vehicle to be readily engaged with a portion of the stand when the latter is disposed to its efiective position and a still further object resides in providing a lock which will admit of the stand being dis posed to its eflective position without being engaged by the lock proper.

Still another object of the invention resides in providing a device which is simple and durable in construction, inexpensive to manufacture and one which will be very efficient and useful in operation.

With these and other objects in view, the invention consists in the novel features of construction, combination and arrangement of parts as will. be hereinafter referred to and more particularly pointed out in the specification and claims.

In the accompanying drawings forming a part of this application, Figure 1 is a fragmentary side elevation of a frame of a cycle showing my improved lock applied to use thereon, and indicating in dotted lines the position of the stand therefor, when raised. Fig. 2 is an enlarged vertical section through the lock proper. Fig. 3 is a transverse section therethrough as seen on line 3-3, Fig. 2; and Fig. 4 is a plan view of the locking bar of the look.

In describing my invention, I shall refer to the drawings in which similar reference characters designate corresponding parts throughout the several views and in which 1 indicates a frame of a motorcycle of the usual or any preferred type, to which is hmgedly secured at the rear end thereof, in the usual manner, the stand 2, said stand being of the usual or any referred type and which, when set to its e ective position, has the shoulder portions 3thereof resting in contact with the rear ends of the lower longitudinal bars of the frame 1. My improved device contemplates the provision of a lock to retain said stand in position against casual displacement and, at the same time, prevent the theft of the cycle when so disposed and when the owner is not nearby. To this end, a casing 4 is provided which is mounted within the rear end of one of the lower longitudinal bars of said frame 1. The lower edge of the casing 4, adjacent its rear end is provided with an opening 5 which is adapted to receive therein a projection 6 formed on one arm of the stand 3. This projection is designed to form a latch member or catch, the same being offset and provided with a cavity or the like 7 along one side edge thereof.

Formed on the side walls of the casin 4, in spaced parallel relation to one anot r are a air of horizontal guides 8 between which is slidably disposed the locking bar 9. A spring member 10 mounted in the one end of the casing 4 has a portion thereof engaged with the one end of the locking bar to normally force the latter toward the op posite end of the casin and when so disposed under tension of tile sprin said looking bar is adapted to engage e latch or catch member 6 when the same is disposed in the opening 5 of the casing or look.

Mounted to oscillate between the front and rear walls of the lock casing 4, is a spindle or shaft 11 which has a depending arm 12 formed thereon, said dependm arm having a loose connection with the sliding looking bar 9. A key-hole opening 13 is provided in the front wall of the casing which is adapted to cooperate with a key-hole slot in the one end of the spindle 11 and when a key 14 is properly introduced in the keyhole slot and engaged with the spindle, said looking bar 9 may, obviously, be retracted when the key is turned in one direction. I have provided a means for the retention of the locking bar 9 in its retracted position and to this end, a pawl 15 is provided, the same being fulcrumed intermediate of its ends between the front and rear walls of the casing. The toothed end thereof is adapted to en ge a notch 16 in the lower edge of the loc ing bar adjacent one end thereof and a leaf spring 17 mounted in the casing has enga ement with said pawl to normally force t e same upwardly into engagement with the locking bar. When the locking bar 9 has been retracted to a predetermined position, the locking pawl w'ill automatically engage the notch 16 to secure said sliding bar in its retracted position. A push button 18 is slidably disposed through aniopeningin o the lower edge of the caslng', at a point adjacent the opening 3 therein, the inner end of said'push button. having a loose .pivotal connection with a slot 15, in one end of the fulcrumed pawl 15. When this push button is- ,forc ed inwardly, the efiective end of the pawl is released of its/engagement with the sliding locking bar 9 and the latter may then be'disposed to, its effective position.

,In'operatiomassuming that the stand is in. its raised position on the vehicle, should itbe v desired to lower the same and lock the device, said stand is disposed to-its.

lowered position in theusual manner and in so doing, it is obvious that the pro ectlon 6 forming a "catchomember will be disposed in the .openi-ng'fe? oftheglook- ,As this is done,

thelocking bar 9 willbe 'automaticall en'-' 'gaged therewith in view of the convexe endof said member 6, so-that when said stand.v

'is disposed to" itsloweredposition, the same Wil ljbe automatically locked. The rear end of the vehicle is, "thereby raised; above the surface of the ground and the standlocked .in its lowered position; Whenso disposed,- I it willv be seen'that' said stand-cannot. be"

raised without having first disposed" the lockin bar 9 to itsinefl'ective position and 1 thus t is locking-device will. prevent the theft of the vehicle. When the owner of the cycle desires to raise the stand and release it of its locked enga ement, the key 14 is inserted in the keyole slot of the casing to properly engage with the spindle 11. The'key is then turned in a gljclockwise direction, whichoperation will retract the locking bar 9. When said locking bar has been retracted to a certain position, the pawl 15 will beautomatically engaged therewith to retain the same in said retracted position.

i The stand 2 may then be readily disposed to its raised position on the vehicle. After the stand has been disposed to its raised position, the vehicle is ready for use and when the operator desires to stop the machine and leave the samestanding in an upright position, it is necessary, after stopping, to lower the stand, so that the projection 6 thereof will enter the lock casing. At this time, the locking bar 9 being in its retracted position, will not cdntact with the projection 6 as the latter enters the lock casing and will not, therefore, have any effect thereon. The stand will therefore, be effective with regard to holding the machine in an upright position but will not be locked in such position. If,

however, the operator desires to lock the stand in this position, the push button 18 is pressed inwardly, which operation will, 0bviously disengage the pawl 15 from the locking bar 9 and thereby permit the latter to be engaged with the projection 6 to lock the same in the casing. This operation, whereby the stand may be disposed to its lowered position, without bein efiectively locked, is preferable, but it will e understood that, if desired, the locking bar may be normally disposed to its locked or extended position, so that when the stand is lowered, the latter will be automatically lowered in position;

From the foregoing it will be seen that I have provided a simple, inexpensive and efficient means for carrying out the objects of the inventionand while I have particularly described the elements best adapted to perform the functions set forth, it is obvious that'v'a-rious changes in form, proportion and in the minor details of construction may be resorted-. to without departing fromthe spirit vor-sacrificing any of the principles of the invention.

Having; thus described this what is. vclaimed is 1. A lock of the class described comprising a casing having an opening in the bottom wall thereof, pairs of spaced guide rails on the inner faces of the side walls of said casing and extending the full length thereof, a bolt slidably mounted between said guide invention,

, rails and having aoslot therein, 5 ring means in connection with said locking olt and one "end of the casing to normally dispose the former to its efiective position over the opening in the bottom of said casing, a spindle mounted to oscillate between the side walls of said casing above the guide rails thereon,

a shank formed on said spindle disposed in the slot of said ;bolt to retract the latter upon the turning of the spindle'in one direction, means operating automatically for temporarily retaining said locking boltin its retracted positionat a predetermined point in the path of the retractive movement there- .of, and means for manually releasing the "the side walls of the casing below said locking bolt, spring means in connection with a portion of the pawl on one side ofitsfulbolt crum point to normally dispose the same in contact with the lower edge of said bolt, whereby to permit the same to be engaged with the notch in said bolt when the latter 5 is retracted to a predetermined point, the

opposite portion of said pawl bein provided with a slot adjacent its free en and a push pin slidably mounted in the lower wall of said casing and having a loose piv- 10 otal connection with the slotted end of said 

